Running an SDSoC Emulation produces an instance of XSIM that can continue to run forever in the background, even after the Emulation is closed by the user.
When Emulation closes, the XSIM GUI will close too.
However, the XSIM instance continues in the background.
This issue is intermittent, and does not occur frequently.
However, users should be aware of this issue as the XSIM will continue to run at full CPU utilization.
The XSIM instance can safely be killed.